JP2008300100A - Shielded connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To downsize a shielded connector. <P>SOLUTION: A plurality of female shielded connectors equipped with outer conductors connected with a shielded layer of a shielded cable and inner conductor terminals connected with core wires are laminated and inwardly insertion-coupled in a parallel set state inside a male shielded connector of a square frame shape formed of one conductive member. Each outer conductor of the female shielded connector is provided with a convex part at one of the opposed side wall parts of a square cylinder shape as well as a concave part at the other side wall part, each outer conductor has its convex part insertion-coupled with the concave part of the adjacent outer conductor to be laminated, while a through-hole is provided for inserting a convex part of the female shielded connector at one end side parallel with one of the opposed side wall parts of the male shielded connector, and at the same time, a spring part is provided for biasing the other-side wall part female shielded connector, and the female shielded connectors laminated in the male shielded connector are pressed to a wall part provided with through-holes by the spring part to be fixed inside the male shielded connector. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shield connector, and more particularly to a shield connector connected to a terminal of a shield cable routed in an automobile.

  Conventionally, in Japanese Patent Application Laid-Open No. 7-22107 (Patent Document 1), a connector connected to a terminal of a shielded cable constituting a signal circuit is provided. As shown in FIG. 5 (A), the connector connects the inner conductor terminal 3 to the core wire 2 of the shielded cable 1 and connects the outer conductor 5 to the shield layer 4 covering the core wire 2. The outer conductor 5 in which the conductor terminal 3 is disposed is accommodated in a terminal accommodating chamber 6a provided in a connector housing 6 made of resin. As shown in FIG. 5B, the connector housing 6 is provided with a plurality of terminal accommodating chambers 6a, and a plurality of external conductors 5 connected to different shielded cables 1 are individually connected to different terminal accommodating chambers 6a. Is housed in.

However, in the connector provided in Patent Document 1, the external conductor 5 connected to the end of each shielded cable 1 is individually accommodated in the terminal accommodating chamber 6a of the connector housing 6, so that the size of the connector increases. There's a problem.
Also, on the side of the mating connector connected to the connector connected to the shielded cable 1, it is necessary to provide the conductors respectively connected to the external conductors 5 individually arranged in the connector housing 6, and the mating connector is also enlarged. There's a problem.

JP-A-7-22107

  The present invention has been made in view of the above problems, and it is intended to improve the connection structure between a connector connected to a terminal of a shielded cable and a mating connector, to reduce the size of the connector, to facilitate fitting work, and the like. It is an issue.

In order to solve the above-mentioned problems, the present invention forms a plurality of female shield connectors having an outer conductor connected to a shield layer of a shielded cable and an inner conductor terminal connected to a core wire with one conductive member. Laminated and fitted in a square frame-shaped male shield connector in parallel,
The external conductor of the female shield connector is provided with a convex portion on one opposite side wall portion of the rectangular tube shape and provided with a concave portion on the other side wall portion, and each external conductor has a convex portion fitted into the concave portion of the adjacent external conductor. While laminating
A through-hole for inserting the convex portion of the female shield connector at one end side-by-side provided in the side wall portion facing the male shield connector is provided, and a spring portion for biasing the female shield connector is provided in the other side wall portion. ,
There is provided a shield connector characterized in that the female shield connector laminated in the male shield connector is pressed against the wall portion provided with the through hole by the spring portion and fixed in the male shield connector.

According to the shield connector having the above-described configuration, the external conductors of the plurality of female shield connectors connected to the shield cable are stacked and assembled and accommodated in a male shield connector formed of one conductive member in this state. Therefore, the outer conductors of the plurality of female shield connectors can be shield-connected to one male shield connector at a time.
In this way, since it is not necessary to individually accommodate the female shield connector in the resin connector housing and individually connect the outer conductor and the inner conductor terminal, the shield connection of the female shield connector can be simplified. The shield connector can be downsized.
In addition, the external conductors of a plurality of female shield connectors can be inserted into the male shield connector in a state where the outer conductors are connected by fitting and concaving together, and the female shield connector can be inserted into the male shield connector with a spring portion. Since the female shield connector is prevented from dropping from the male shield connector, the connection reliability between the female shield connector and the male shield connector can be improved.

  A push-back material is projected outwardly into a through-hole provided in the male shield connector and slidably inserted, and the push-back material is pushed in from the outside to move the female shield connector toward the spring portion side. These female shield connectors are preferably removable from the male shield connector.

  According to the above configuration, when the female shield connector is mistakenly inserted, or when it is necessary to remove the female shield connector from the male shield connector for the purpose of inspection / part replacement, the female shield connector is used. The female shield connector can be easily removed from the male shield connector by releasing the fitting between the convex portion of the shield connector and the through hole of the male shield connector.

The shield connector of the present invention is preferably used when the male shield connector is disposed on a circuit board and the inner conductor terminal of the female shield connector is connected to the electric circuit of the circuit board.
In detail, the male shield connector has a female inner conductor terminal soldered at one end to the circuit of the circuit board inside a rectangular frame-shaped outer conductor into which the outer conductor of the laminated female shield connector is fitted. It protrudes from the side wall facing the shield connector insertion side. The inner conductor terminal of each female shield connector inserted and fixed in the male shield connector is fitted and connected to the inner conductor terminal connected to the circuit of the circuit board. A terminal portion protrudes from the external conductor of the male shield connector, and the terminal portion is connected to the ground circuit of the circuit board.
The external conductor of the male shield connector may be directly mounted on the circuit board, or an insulating spacer may be mounted. Alternatively, the male shield connector may be accommodated in a resin cover member and mounted on the circuit board.
Although the female shield connector connected to the shield cable is not accommodated in the resin connector housing, the male shield connector into which the female shield connector is fitted may be accommodated in the resin connector housing.

As described above, according to the present invention, a plurality of female shielded connectors connected to a shielded cable are fitted into the mating male shielded connector in a stacked state without being individually housed in a resin connector housing. Therefore, the connector can be reduced in size. In addition, the external conductors of each female shield connector are directly fitted into the concave and convex parts and assembled into a laminated state, and formed into a frame shape with a conductive material and inserted into a male shield connector that also serves as a shield member. Therefore, the outer conductors of the plurality of female shield connectors can be collectively shield-connected by fitting with the male shield connector.
Furthermore, since the female shielded connectors that are stacked and integrated are collectively inserted into the male shielded connector and elastically fixed by the spring portion in the male shielded connector in the inserted state, a plurality of female shielded connectors can be connected with a single touch. It can be fitted and fixed to one male shield connector, and the female shield connector can be prevented from being inadvertently disconnected from the male shield connector.

Embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of the present invention.
The shield connector 10 of the present embodiment includes a female shield connector 20 connected to the end of the shield cable 40 and a male shield connector 30 mounted on a printed circuit board 50 (circuit board), and a plurality of female shield connectors 20 are arranged in parallel. They are stacked in a state and are fitted into the male shield connector 30 for connection.

The shield cable 40 to which each female shield connector 20 is connected includes a core wire 41 made of two insulated wires, a shield layer 42 made of a braided tube covering the two core wires 41, and the shield layer 42. The sheath 43 is made of an insulating resin that further covers the outer peripheral surface of the resin.
The female shield connector 20 connected to the end of the shield cable 40 includes an inner conductor terminal 21 connected to the core wire 41 and an outer conductor 22 connected to the shield layer 42.

Specifically, the end of the shielded cable 40 is peeled off, the core wire 41 is pulled out from the peeled end of the sheath 43, and the inner conductor terminal 21 is connected to the end of the core wire 41.
As shown in FIG. 3, the inner conductor terminal 21 is provided with a female-shaped terminal connection portion 21a at one end, and an electric wire connection portion 21b composed of a core crimping barrel 21b-1 and an insulation coating crimping barrel 21b-2 at the other end. The core wire crimping barrel 21b-1 is crimped to the core wire of the core wire 21b, and the insulation coating crimp barrel 21b-2 is crimped to the insulation coating of the core wire 21 to connect the wire connecting portion 21b to the end of the core wire 21. is doing.

The shield layer 42 is exposed from the peeled end of the shield cable 40, and the outer conductor 22 is connected to the shield layer 42.
As shown in FIGS. 1 and 3, the outer conductor 22 is provided with a rectangular tube-shaped conductor connecting portion 22a at one end, and an electric wire comprising a shield layer crimp barrel 22b-1 and an insulation coating crimp barrel 22b-2 at the other end. A connecting portion 22b is provided. The shield layer crimping barrel 22b-1 of the wire connection portion 22b is crimped to the shield layer 42 of the shield cable 40, and the insulation coating crimp barrel 22b-2 is crimped to the sheath 43, so that the outer conductor 22 is shielded from the shield cable 40. Connected to layer 42.
In a state where the female shield connector 20 is connected to the shield cable 40, the inner conductor terminal 21 connected to the core wire 21 is disposed in the conductor connection portion 22 a of the outer conductor 22 connected to the shield layer 42. The inner conductor terminal 21 is positioned and held in a state of being insulated from the outer conductor 22 by a holding material (not shown) made of an insulating resin provided in the outer conductor 22.

  The outer conductor 22 of the female shield connector 20 is provided with a rectangular convex portion 22c on one side wall portion of the rectangular tube-shaped conductor connecting portion 22a and a rectangular concave portion 22d on the other side wall portion. When the plurality of external conductors 22 are stacked, the convex portions 22c of the respective external conductors 22 excluding the external conductor on one end side are fitted into the concave portions 22d of the adjacent external conductors 22 so that the plurality of external conductors 22 are arranged in parallel. Positioned.

On the other hand, as shown in FIG. 3, the male shield connector 30 has a male inner conductor terminal 31 connected to the inner conductor terminal 21 of the female shield connector 20 and an outer conductor 22 of the female shield connector 20 fitted therein. It consists of an external conductor 32 to be connected.
As shown in FIG. 1, the external conductor 32 of the male shield connector 30 has a rectangular frame shape with one opening formed by one conductive member, and a connector for inserting a plurality of female shield connectors 20 in which the openings are stacked. The insertion port 32a is used. As shown in FIG. 2, the outer conductor 32 is provided with a through hole 32b into which the convex portion 22c of the outer conductor 32 of the female shield connector 20 is inserted in one side wall portion orthogonal to the connector insertion port 32a. A spring portion 32c is formed of a leaf spring formed by cutting and raising the wall portion partially inwardly on the other side wall portion facing the side wall portion, and biases the female shield connector 20 fitted therein to the one side wall portion side. Provided. Further, a push-back member 33 for pushing back the inserted convex portion 22c is slidably inserted into the through hole 32b of the outer conductor 32, and the outer end of the push-back member 33 is inserted through the through hole 32b. It protrudes outward.

  Further, as shown in FIG. 3, the outer conductor 32 is provided with a tab-like terminal 32d protruding downward from the lower surface of the square frame. The terminal 32d is soldered and connected to a conductor 51 constituting the ground circuit of the printed circuit board 50. At this time, the rectangular frame of the external conductor 32 is placed on a support base 52 made of an insulating material provided on the printed circuit board 50 and positioned and held at a required height.

  As shown in FIG. 3, the inner conductor terminal 31 of the male shield connector 30 is made of an L-shaped terminal material, and the terminal connection portion 31 a at one end is projected into the outer conductor 32 through the terminal insertion hole 32 e of the outer conductor 32. On the other hand, the conductor connecting portion 31b at the other end is soldered and connected to the conductor 53 constituting the signal circuit of the printed circuit board 50.

When the female shield connector 20 and the male shield connector 30 are connected, the female shield connector 20 is laminated in a juxtaposed state by fitting the convex portions 22c and the concave portions 22d of the external conductor 22 as described above, and FIG. As shown, in this state, the external conductor 32 of the male shield connector 30 is inserted through the connector insertion port 32a and is internally fitted. As shown in FIG. 2 (A), the plurality of female shield connectors 20 fitted inside are urged toward the one side wall portion provided with the through hole 32b by the spring portion 32c of the outer conductor 32 of the male shield connector 30. The convex portion 22 c of the outer conductor 22 on one end side is inserted into the through hole 32 b of the outer conductor 32 of the male shield connector 30, and all the female shield connectors 20 are positioned in the male shield connector 30.
At this time, the inner conductor terminal 21 of the female shield connector 20 and the inner conductor terminal 31 of the male shield connector 30 are male and female fitted and connected. Therefore, by connecting the female shield connector 20 and the male shield connector 30, the core wire 41 of the shield cable 40 is connected to the signal circuit (conductor 53) of the printed circuit board 50, while the shield layer 42 of the shield cable 40 is connected to the printed circuit board 50. To the earth circuit (conductor 51).

On the other hand, when the female shield connector 20 is taken out from the male shield connector 30, as shown in FIG. 2B, the push-back member 33 slidably inserted into the through hole 32 b of the external conductor 32 of the male shield connector 30. Is pushed in from the outside, and the female shield connector 20 is moved to the spring portion 32c side. Thereby, the convex portion 22c of the outer conductor 22 of the female shield connector 20 inserted into the through hole 32b is removed, and the female shield connector 20 can be taken out from the male shield connector 30.
In addition, when the outer conductor 22 of the female shield connector 20 slides in the left and right direction in FIG. 2 within the male shield connector 30, the inner conductor terminal 21 of the female shield connector 20 also moves in the left and right direction. The female inner conductor terminal 21 is set to be larger than the male inner conductor terminal 31 in the left-right direction so that the connection between the inner conductor terminals 21 and 31 is allowed even if the inner conductor terminal 21 moves in the left-right direction.
In FIG. 2, the inner conductor terminals 21 and 31 are not shown.

According to the above configuration, the plurality of female shielded connectors 20 connected to the shielded cable 40 are not housed individually in the resin connector housing, but are connected to the mated male shielded connector 30 in a stacked state. Therefore, the connector can be reduced in size.
In addition, since the plurality of female shield connectors 20 are stacked and the outer conductor 22 of the female shield connector 20 is integrated, the outer conductor 32 of the male shield connector 30 is formed in a square frame shape formed of one conductive member. The shape of the male shield connector 30 can be simplified and the cost can be reduced.

Further, the female shield connectors 20 to be stacked can be positioned by fitting the concave portions 22d and the convex portions 22c provided in the outer conductors 22 of the female shield connectors 20 together. The convex portion 22c of the female shield connector 20 on one end side is inserted into the through hole 32b of the external conductor 32 of the male shield connector 30, and the female shield connector 20 is moved to the wall side where the through hole 32b is provided by the spring portion 32c. Since the bias is applied, the female shield connector 20 can be prevented from being inadvertently disconnected from the male shield connector 30. Thereby, the connection reliability of the female shield connector 20 and the male shield connector 30 can be improved.
On the other hand, when it becomes necessary to take out the female shield connector 20 from the male shield connector 30, the push-back member 33 is pushed inward, and the convex portion 22 c of the female shield connector 20 and the through hole 32 b of the male shield connector 30. And the female shield connector 20 can be easily taken out from the male shield connector 30.
In the present embodiment, the external conductor 32 of the male shield connector 30 is disposed on the printed circuit board 50. However, the external conductor 32 is disposed on the printed circuit board 50 while being accommodated in a resin connector housing. Also good.

FIG. 4 shows a modification of the embodiment.
In this modification, the push-back member 33 ′ is provided integrally with the outer conductor 32 of the male shield connector 30. That is, as shown in FIG. 4A, a rectangular-shaped through hole 32b is provided by cutting out a U-shaped slit 32f on one side wall portion of the outer conductor 32, and the through hole is formed from one side of the through hole 32b. A push-back member 33 ′ made of a flexible piece protruding toward the 32b side is provided.

When the female shield connector 20 is fitted into the male shield connector 30 and the convex portion 22c on the female shield connector 20 side is inserted into the through hole 32b on the male shield connector 30 side, as shown in FIG. The push-back member 33 ′ bends outward.
On the other hand, as shown in FIG. 4C, when the push-back member 33 ′ is pushed inward, the fitting between the through hole 32b on the male shield connector 30 side and the convex portion 22c on the female shield connector 20 side is released. .

According to the configuration of the present modified example, the shield connector 10 can be reduced in size as in the above embodiment, and the push-back member 33 ′ is provided integrally with the outer conductor 32 of the male shield connector 30, thereby reducing the number of parts. At the same time, it is possible to prevent the pushback member 33 ′ from falling off the male shield connector 30.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

It is a perspective view of the shield connector of the embodiment of the present invention. (A) is sectional drawing which shows the state which fitted the female shield connector in the male shield connector, (B) is sectional drawing which shows the state which pushed back the female shield connector fitted in the male shield connector with the push-back material. . It is sectional drawing which shows the state which connected the male shield connector and the female shield connector. The modification of embodiment is shown, (A) is a figure which shows the one side wall part of a male shield connector, (B) is sectional drawing which shows the state which carried out female fitting connector fitting in the male shield connector, (C) is a male shield. It is sectional drawing which shows the state which pushed back the female shield connector internally fitted by the connector with the push-back material. It is drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shield connector 20 Female shield connector 21 Inner conductor terminal 22 Outer conductor 22c Convex part 22d Concave part 30 Male shield connector 31 Inner conductor terminal 32 Outer conductor 32b Through hole 32c Spring part 33 Push-back material 40 Shield cable 41 Core wire 42 Shield layer 50 Printed circuit board (circuit board)

Claims (3)

A plurality of female shielded connectors with external conductors connected to the shield layer of the shielded cable and inner conductor terminals connected to the core wires are arranged in parallel in a square frame-shaped male shielded connector formed of one conductive member. It is laminated and fitted in the state,
The outer conductor of the female shield connector is provided with a convex portion on one opposite side wall portion of the rectangular tube shape and provided with a concave portion on the other side wall portion, and each outer conductor has a convex portion fitted into the concave portion of the adjacent outer conductor. While laminating
A through-hole for inserting the convex portion of the female shield connector at one end side-by-side provided in the side wall portion facing the male shield connector is provided, and a spring portion for biasing the female shield connector is provided in the other side wall portion. ,
The shield connector, wherein the female shield connector laminated in the male shield connector is pressed against the wall portion provided with the through hole by the spring portion and fixed in the male shield connector. Insert the slidable material into the through hole provided in the male shield connector by projecting the pushback material outward,
2. The shield connector according to claim 1, wherein the push-back member is pushed in from the outside to move the female shield connector toward the spring portion, and the female shield connector can be taken out from the male shield connector.   The shield connector according to claim 1 or 2, wherein the male shield connector is disposed on a circuit board, and an inner conductor terminal of the female shield connector is connected to an electric circuit of the circuit board.

Images